Hey. My cat, belle, is around 6 years old and today she started running around the house as if she was scared of everything. She's usually a very relaxed cat and doesn't usually hide, but today she was hiding under beds and in closets and breathing heavily. We took her to the vet but they couldn't tell what was wrong. She ate some when we brought her back then she stared at the wall for a while and ran back under the bed. Should I be concerned?! P.S- we also had a slight rain storm today, so could that be why she was freaked out? She's never freaked out over a storm before!